Writer and director Mary Harron made Patrick Bateman a household name in her American Psycho adaptation, and brought historical figures to life in I Shot Andy Warhol and The Notorious Bettie Page. Now she's out to see if she can make you care about vampires again in her indie boarding school horror flick The Moth Diaries.

The Moth Diaries is Marron's adaptation of Rachel Klein's novel of the same name. Sarah "Mary Tudor" Bolger plays Rebecca, a student at an all-girls boarding school who becomes suspicious Ernessa, played by Doctor Parnassus star Lily Cole, after Ernessa becomes suspiciously close to fellow classmate Lucie. The trailer gives us a peek inside the bloody boarding school horror, with a side of Scott Speedman.

We interviewed Lily Cole about the film a few years ago, before filming even began. Now we'll finally get a chance to see the film when it hits theaters on April 20th.